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  1. #1
    註冊日期
    2007-05-03
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  3. #2
    註冊日期
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    THE DAC 25A is considered a reference product in its class. Its aim is to conquer the new audio formats market. It is considered a best buy and in Japan it was an absolute successes.

    Digital Analog Converter + Headphone Amp - DAC 25A

    Made to convert your music files into an analogue signal. Its features are superb, the conversion is handled by a Burr Brown 1792, that transformers the signal into a balanced analogue output. Pride of Onix.

    Front: Black Glass. Front handle that controls the headphone’s volume. Golden buttons that are displayed ergonomically .SELECT button to choose the input and a SRC button to select the sampling rate.

    Inputs: Digital optical (S-PDIF) ,RCA Inputs and a Usb Port to select music from a PC or Apple Computer.

    Outputs: RCA (L+R) ,balanced XLR (L+R). High Quality connectors .Filtered Power supply. Native analogue balanced circuitry.

    All components are carefully selected and carefully placed on the circuit board for both digital and analogue components. R-CORE transformer and Nichicon “Gold Tune” series capacitors.

    DAC 25A APPLICATIONS
    CD PLAYER CONVERTER: The signal is taken after the mechanical stage and can be used an excellent replacement to an old converter. This can be done with the Digital or RCA outputs.

    MULTIMEDIA CONVERTER: From music stored in a Hard Disk . Using a computer or a multimedia center. This can be done with the USB port.

    AMPLIFIER FOR HEADPHONES: Excellent sonic qualities ,the sound can be from an external cd player or computer. The DAC has a volume control knob.

    Features:
    24bit/192KHz high precision DAC Burr Brown PCM1792
    Asynchronous chip with a sample rate of 192kHz with low jitter.
    High precision clock with ReClock for minimizing error
    USB input to pick up the digital audio signal directly from the computer (interfaced with Microsoft and Apple Computers)
    Coaxial digital inputs (RCA), digital optical inputs (S-PDIF)
    Analog outputs 1 RCA (L + R), 1 XLR (L + R);

    Specifications:
    Dynamic range: (24bit)> 120dB; Signal to Noise Ratio:> 112dB (RCA);> 125dB (XLR); THD + N: <0.001% (20Hz-20KHz); Output XLR: 4.0V; Output RCA: 2.0V; Dimentions: (W x D x H): 21,5 x 35,5 x 9,5 cm; Weight: 7 Kg; Power supply: 220-240V.

    Components used:
    TE7022L (TENOR) 24/96KHz Audio Streaming Controller USB 2.0; PCM1792 (BURR BROWN) Digital/Analog Converter 24bit/192KHz; SRC4192 (BURR BROWN) 192kHz Stereo Asynchronous Converter; N.4 OPA2134 (BURR BROWN) Audio Operational Amplifiers; CS8416 (CIRRUS LOGIC) 192KHz Digital Audio Receiver; N.2 74HC244D (PHILIPS) Octal buffer/line driver; 74HC125 (PHILIPS) Quad buffer/line driver; R-CORE “high grade silicon steel core” transformer made to specifications Onix.

  4. The Following 3 Users Say Thank You to Leo Yeh For This Useful Post:


  5. #3
    註冊日期
    2009-02-22
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    dac25b 與 dac25a 看背版,差異在25b多了ipon輸入端,不知道還有沒有其他不同的地方?

  6. The Following User Says Thank You to jj-bond For This Useful Post:


  7. #4
    註冊日期
    2011-07-12
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    第二篇貼成25a了,電腦顯示xmos usb晶片,和25a的tensor晶片不同
    頂上Hi-Fi

  8. The Following User Says Thank You to edcrfv For This Useful Post:


  9. #5
    註冊日期
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    樓上的優秀,知道我在說啥.......差異我整理一下

  10. #6
    註冊日期
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    各代主要更改USB接收晶片部分
    DAC25A 將USB界面由USB1.1提升到USB2.0
    DAC25B 加入XMOS模組,其中包括增加iPod輸入

    USB接收晶片部分差異:



    同軸光纖DA晶片 數位接收晶片
    升頻晶片 USB晶片
    DAC25 BB PCM1792 Cirrus logic CS8416 BB SRC4192 BB PCM2704 (48k/16bit)
    DAC25A BB PCM1792 Cirrus logic CS8416 BB SRC4192 TENOR TE7022L (96k/24bit)
    DAC25B BB PCM1792 Cirrus logic CS8416 BB SRC4192 XMOS (192k/24bit)


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  12. #7
    註冊日期
    2009-10-10
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    Onix DAC25B的使用方式十分簡單,先在前方面板將Input切至USB檔位:



    在後方將USB輸入街上Mac mini的USB Port:



    在Finder下選擇系統偏好設定裡面的聲音:




    進入後在輸出上選擇USB Audio:



    接者開啟iTune後就可以聽音樂了:



    當然透過iPad進行搖控就不用跑來跑取切換取目了:


  13. #8
    註冊日期
    2009-10-10
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  14. #9
    註冊日期
    2007-05-03
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    75,643
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    Thanked 20,851 Times in 9,313 Posts

    預設

    Onix的聲音很討喜,溫潤有甜味,好好聽~~~~

  15. #10
    註冊日期
    2011-05-17
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    Thanked 2 Times in 2 Posts

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    漂亮!
    話說他的訊號輸出是有經過前級控制還是直出呢?

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